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Thornton, Colorado Weather:
Saturday, March 21, 2026
Cloudy Weather
Day 55°
Night 25°
Precipitation 1 %
Wind 8 mph
Weather Forecast History
Last Year's Weather on This Day (March 21, 2025)
Cloudy Weather

Day

57°

Night

37°

Wind

12 mph

UV Index

5

Precipitation

25 %